Scilab Function
Last update : 30/11/2005

barhomogenize - homogenize all the bars included in the current working axes

### Calling Sequence

  `barhomogenize()`
  `barhomogenize([h[,'style'[,'width']]])`

### Parameters

- `h`: an axes handle, (default: h=gca() ).
- `style`a string, 'grouped' or 'stacked' (default: 'grouped').
- `width`: (optional), a real scalar, defines the width (a percentage of the available room) for the bar (default: 0.8).

### Description

If there are several bar calls, the `barhomogenize` function allows to homogenize the width and style of all bars (i.e which has the `polyline_style` type 6) included in the current working axes. These bars must have the same x data.

`barhomogenize( ) :` takes the default values, h=gca(), width=0.8, style='grouped'. ``

`barhomogenize(h,...) :` defines the current axes where the drawing is performed.

`barhomogenize(...,width,...) :` defines the width of the bar(s) in percentage (generally: 0<width<=1).

`barhomogenize(...,style,...) :` defines how the bars are drawn. The 'grouped' option allows to center the M polylines versus each components of x, and the 'stacked' option allows to stack them.

### Examples

    // First example: creation of 1 yellow bar (i.e 1 polyline with polyline_style=6) and 3 bars (i.e 3 polylines with polyline_style=6)
    subplot(2,3,1)
    xtitle('ex1: creation of 1 yellow bar and 3 bars ')
    x=1:3; y1=1:3; y2=[4 3 5;6 7 8;9 10 11];
    bar(x,y1,'yellow');bar(x,y2);
    // grouped homogenisation of these 4 bars
    subplot(2,3,2)
    xtitle('grouped homogenisation')
    x=1:3; y1=1:3; y2=[4 3 5;6 7 8;9 10 11];
    bar(x,y1,'yellow');bar(x,y2);
    barhomogenize();
    // stacked homogenisation of thes 4 bars
    subplot(2,3,3)
    xtitle('stacked homogenisation')
    x=1:3; y1=1:3; y2=[4 3 5;6 7 8;9 10 11];
    bar(x,y1,'yellow');bar(x,y2);
    barhomogenize('stacked',1);

    // Second example : creation of 1 red bar (i.e 1 polyline with polyline_style=6) and 2 polylines with type=1 (calling plot function)
    subplot(2,3,4)
    xtitle('ex2: creation of 1 bar and 2 polylines')
    x=1:10; y=sin(x)/2;
    bar(x,y,'red')
    x1=1:10;y1=[sin(x);cos(x)]
    plot(x1,y1)
    // modify the polyline_style type of the second polyline from plot (this polyline becomes a bar)
    subplot(2,3,5)
    xtitle('transformation of the second polyline to bar')
    x=1:10; y=sin(x)/2;
    bar(x,y,'red')
    x1=1:10;y1=[sin(x);cos(x)]
    plot(x1,y1)
    e=gce(); e2=e.children(2); e2.polyline_style=6;
    // homogenisation of the first bar (from bar function) and second bar (from the modification).
    subplot(2,3,6)
    xtitle('grouped homogenisation')
    x=1:10; y=sin(x)/2;
    bar(x,y,'red')
    x1=1:10;y1=[sin(x);cos(x)]
    plot(x1,y1)
    e=gce(); e2=e.children(2); e2.polyline_style=6;
    barhomogenize();
    // change the style and the width
    //barhomogenize('stacked',0.5);
    //barhomogenize('stacked',1);

### See Also

`bar`, `polyline_properties`,

### Author

Farid Belacehne